15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved.
25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be
35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file.
45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/var_array_buffer.h"
65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <limits>
85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/ppb_var_array_buffer.h"
105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/logging.h"
115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/module_impl.h"
125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace pp {
145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace {
165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template <> const char* interface_name<PPB_VarArrayBuffer_1_0>() {
185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  return PPB_VAR_ARRAY_BUFFER_INTERFACE_1_0;
195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}
205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}  // namespace
225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
23c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)VarArrayBuffer::VarArrayBuffer() {
24c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  ConstructWithSize(0);
25c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}
26c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)
275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VarArrayBuffer::VarArrayBuffer(const Var& var) : Var(var) {
285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  if (!var.is_array_buffer()) {
295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    PP_NOTREACHED();
305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    var_ = PP_MakeNull();
315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  }
325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}
335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VarArrayBuffer::VarArrayBuffer(uint32_t size_in_bytes) {
35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  ConstructWithSize(size_in_bytes);
365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}
375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)pp::VarArrayBuffer& VarArrayBuffer::operator=(const VarArrayBuffer& other) {
395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  Var::operator=(other);
405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  return *this;
415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}
425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)pp::Var& VarArrayBuffer::operator=(const Var& other) {
445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  if (other.is_array_buffer()) {
455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    return Var::operator=(other);
465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  } else {
475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    PP_NOTREACHED();
485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    return *this;
495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  }
505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}
515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)uint32_t VarArrayBuffer::ByteLength() const {
535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  uint32_t byte_length = std::numeric_limits<uint32_t>::max();
545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>())
555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    get_interface<PPB_VarArrayBuffer_1_0>()->ByteLength(var_, &byte_length);
565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  else
575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    PP_NOTREACHED();
585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  return byte_length;
595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}
605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void* VarArrayBuffer::Map() {
625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>())
635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    return get_interface<PPB_VarArrayBuffer_1_0>()->Map(var_);
645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  PP_NOTREACHED();
655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  return NULL;
665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}
675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void VarArrayBuffer::Unmap() {
695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  if (is_array_buffer() && has_interface<PPB_VarArrayBuffer_1_0>())
705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    get_interface<PPB_VarArrayBuffer_1_0>()->Unmap(var_);
715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)  else
725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    PP_NOTREACHED();
735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}
745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
75c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)
76c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)void VarArrayBuffer::ConstructWithSize(uint32_t size_in_bytes) {
77c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  PP_DCHECK(is_undefined());
78c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)
79c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  if (has_interface<PPB_VarArrayBuffer_1_0>()) {
80c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)    var_ = get_interface<PPB_VarArrayBuffer_1_0>()->Create(size_in_bytes);
81c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  } else {
82c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)    PP_NOTREACHED();
83c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)    var_ = PP_MakeNull();
84c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  }
85c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)  is_managed_ = true;
86c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}
87c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)
885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}  // namespace pp
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